670450902 has 32 divisors (see below), whose sum is σ = 1463854464. Its totient is φ = 203020800.

The previous prime is 670450877. The next prime is 670450903. The reversal of 670450902 is 209054076.

It is a super-2 number, since 2×670450902² = 899008823985227208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670450903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120502 + ... + 125942.

It is an arithmetic number, because the mean of its divisors is an integer number (45745452).

Almost surely, 2^670450902 is an apocalyptic number.

670450902 is an abundant number, since it is smaller than the sum of its proper divisors (793403562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670450902 is a wasteful number, since it uses less digits than its factorization.

670450902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 670450902 is about 25893.0666781670. The cubic root of 670450902 is about 875.2302640789.

The spelling of 670450902 in words is "six hundred seventy million, four hundred fifty thousand, nine hundred two".